Ballard, Philip Boswood
Group test of intelligence/ Philip Boswood Ballard - London: London press, 1925. - viii, 255p. 24cm.
Includes index.
151.22 / BAG
Group test of intelligence/ Philip Boswood Ballard - London: London press, 1925. - viii, 255p. 24cm.
Includes index.
151.22 / BAG